Home / 13,585.82-20,381.79-4,820.73

Finding the Fourth Proportional to 13,585.82, 20,381.79 and 4,820.73

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Solution

The fourth proportional to 13,585.82, 20,381.79 and 4,820.73 is: 7,232.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,585.82 : 20,381.79 = 4,820.73 : x
  2. Step 2: Convert to fraction form
    13,585.82/20,381.79 = 4,820.73/x
  3. Step 3: Cross multiply
    13,585.82x = 20,381.79 × 4,820.73
  4. Step 4: Simplify right side
    13,585.82x = 98,255,106.51
  5. Step 5: Solve for x
    x = 98,255,106.51/13,585.82
  6. Step 6: Final answer
    x = 7,232.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.